Rituximab induced cytokine release syndrome in an MS patient: a case report

Rituximab use in multiple sclerosis has been promising. Cytokine release syndrome (CRS) is a common side effect of rituximab in patients with lymphoma. We report a case of a 44-year-old man with a history of relapsing-remitting multiple sclerosis, who presented with signs and symptoms consistent with CRS after rituximab initiation.